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. 2014 Jan 1;522(13):3091–3105. doi: 10.1002/cne.23571

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© 2014 Wiley Periodicals, Inc.

This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Types of cells that were CTb-labeled in oblique sections of V2. A: Enlarged colored photomicrograph of CTb-labeled cells in layer III in V2. B,C: CTb-immunoreacted sections showing clusters of labeled cells in the upper layers of V2. Asterisks indicate corresponding blood vessels. D: Cell types exhibiting feedforward projections in layer III of V2. Enlarged photomicrographs show the labeled cells in V2 after an injection of CTb in V4. Scale bar = 200 μm in A, C (applies to B,C), and D.